Results 31 to 40 of about 1,521,507 (314)

Frequent and unpredictable changes in COVID-19 policies and restrictions reduce the accuracy of model forecasts

open access: yesScientific Reports, 2023
Between June and August 2020, an agent-based model was used to project rates of COVID-19 infection incidence and cases diagnosed as positive from 15 September to 31 October 2020 for 72 geographic settings.
Farah Houdroge   +11 more
doaj   +1 more source

Protocol for the production of micro- and nanoplastic test materials

open access: yesMicroplastics and Nanoplastics, 2023
Micro- and nanoplastics (MNP) are ubiquitous, but little is known about the risks they pose to human health. Currently available data are of limited use for developing relevant risk assessments due to poor quality control, the lack of a standardised ...
Luke A. Parker   +8 more
doaj   +1 more source

Modeling Model Uncertainty [PDF]

open access: yesJournal of the European Economic Association, 2002
Recently there has been a great deal of interest in studying monetary policy under model uncertainty. We develop new methods to analyze different sources of uncertainty in one coherent structure, which is useful for policy decisions. We show how to estimate the size of the uncertainty based on time series data, and how to incorporate this uncertainty ...
Onatski, Alexei, Williams, Noah
openaire   +5 more sources

Insights from quantitative analysis and mathematical modelling on the proposed WHO 2030 goals for soil-transmitted helminths [version 2; peer review: 2 approved]

open access: yesGates Open Research, 2019
Soil-transmitted helminths (STHs) are a group of parasitic worms that infect humans, causing a wide spectrum of disease, notably anaemia, growth retardation, and delayed cognitive development.
NTD Modelling Consortium discussion group on soil-transmitted helminths
doaj   +1 more source

HIV treatment as prevention: models, data, and questions--towards evidence-based decision-making.

open access: yesPLoS Medicine, 2012
Antiretroviral therapy (ART) for those infected with HIV can prevent onward transmission of infection, but biological efficacy alone is not enough to guide policy decisions about the role of ART in reducing HIV incidence.
HIV Modelling Consortium Treatment as Prevention Editorial Writing Group
doaj   +1 more source

The influence of Holmium substitution on the magnetic and mechanical properties of Nd2Fe14B: a first principle study [PDF]

open access: yesMATEC Web of Conferences, 2023
In this study, the ab initio density functional theory (DFT) approach is used to investigate the effect of Holmium (Ho) on the magnetic and mechanical properties of Nd2Fe14B magnets.
Baloyi Mphamela Enos   +2 more
doaj   +1 more source

malERA: An updated research agenda for combination interventions and modelling in malaria elimination and eradication.

open access: yesPLoS Medicine, 2017
This paper summarises key advances and priorities since the 2011 presentation of the Malaria Eradication Research Agenda (malERA), with a focus on the combinations of intervention tools and strategies for elimination and their evaluation using modelling ...
malERA Refresh Consultative Panel on Combination Interventions and Modelling
doaj   +1 more source

Modeling Modeling

open access: yes, 2009
Model-driven engineering and model-based approaches have permeated all branches of software engineering; to the point that it seems that we are using models, as Molière's Monsieur Jourdain was using prose, without knowing it. At the heart of modeling, there is a relation that we establish to represent something by something else.
Muller, Pierre-Alain   +2 more
openaire   +2 more sources

Development of phase doppler anemometry method with a measurement object in the form of a cylinder [PDF]

open access: yesE3S Web of Conferences
Developing methods for diagnosing particle sizes in an aerodynamic flow is a pressing issue in a number of technical applications such as engine building, power engineering, coating, and others.
Kabardin Ivan   +5 more
doaj   +1 more source

Modelling asynchrony with a synchronous model [PDF]

open access: yesFormal Methods in System Design, 1995
The I/O Automaton paradigm of Lynch and Tuttle models asynchrony through an interleaving parallel composition and generalizes more common interleaving models based upon message-passing, such as Hoare's CSP. It is not generally recognized that such interleaving models in fact can be viewed as a special cases of synchronous parallel composition, in which
Robert P. Kurshan   +3 more
openaire   +1 more source

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